S
M
T
W
T
F
S
28
97°
75°
29
100°
73°
30
99°
77°
1
95°
75°
2
95°
72°
3
97°
72°
4
97°
75°
5
93°
75°
6
91°
73°
7
93°
75°
8
91°
73°
9
91°
73°
10
95°
75°
11
95°
75°
12
91°
74°
13
86°
73°
14
87°
72°
15
92°
72°
16
91°
73°
17
90°
72°
18
91°
73°
19
90°
72°
20
88°
72°
21
87°
74°
22
89°
72°
23
91°
73°
24
90°
72°
25
93°
74°
26
91°
72°
27
90°
75°
28
89°
75°
29
92°
74°
30
90°
75°
31
93°
75°
1
93°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Gretna
Gretna's July 2026 forecast shows daily high temperatures ranging from 86° to 95°, with overnight lows between 72° and 75°. The average high for July is 90° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Gretna. See also: August | September | October.
